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comparison dwt/graphics/Transform.d @ 259:c0d810de7093

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Update SWT 3.4M7 to 3.4
author Frank Benoit <benoit@tionex.de>
date Sun, 29 Jun 2008 14:33:38 +0200
parents ce446666f5a2
children
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257:cc1d3de0e80b 259:c0d810de7093
1 /******************************************************************************* 1 /*******************************************************************************
2 * Copyright (c) 2000, 2007 IBM Corporation and others. 2 * Copyright (c) 2000, 2008 IBM Corporation and others.
3 * All rights reserved. This program and the accompanying materials 3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0 4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at 5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html 6 * http://www.eclipse.org/legal/epl-v10.html
7 * 7 *
33 * <p> 33 * <p>
34 * This class requires the operating system's advanced graphics subsystem 34 * This class requires the operating system's advanced graphics subsystem
35 * which may not be available on some platforms. 35 * which may not be available on some platforms.
36 * </p> 36 * </p>
37 * 37 *
38 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: GraphicsExample</a>
39 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
40 *
38 * @since 3.1 41 * @since 3.1
39 */ 42 */
40 public class Transform : Resource { 43 public class Transform : Resource {
41 /** 44 /**
42 * the OS resource for the Transform 45 * the OS resource for the Transform
177 elements[3] = cast(float)handle[3]; 180 elements[3] = cast(float)handle[3];
178 elements[4] = cast(float)handle[4]; 181 elements[4] = cast(float)handle[4];
179 elements[5] = cast(float)handle[5]; 182 elements[5] = cast(float)handle[5];
180 } 183 }
181 184
185 /**
186 * Modifies the receiver such that the matrix it represents becomes the
187 * identity matrix.
188 *
189 * @exception DWTException <ul>
190 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
191 * </ul>
192 *
193 * @since 3.4
194 */
182 public void identity() { 195 public void identity() {
183 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); 196 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED);
184 Cairo.cairo_matrix_init(cast(cairo_matrix_t*)handle.ptr, 1, 0, 0, 1, 0, 0); 197 Cairo.cairo_matrix_init(cast(cairo_matrix_t*)handle.ptr, 1, 0, 0, 1, 0, 0);
185 } 198 }
186 199
187 /** 200 /**
188 * Modifies the receiver such that the matrix it represents becomes the 201 * Modifies the receiver such that the matrix it represents becomes
189 * the mathematical inverse of the matrix it previously represented. 202 * the mathematical inverse of the matrix it previously represented.
190 * 203 *
191 * @exception DWTException <ul> 204 * @exception DWTException <ul>
192 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> 205 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
193 * <li>ERROR_CANNOT_INVERT_MATRIX - if the matrix is not invertible</li> 206 * <li>ERROR_CANNOT_INVERT_MATRIX - if the matrix is not invertible</li>
301 public void setElements(float m11, float m12, float m21, float m22, float dx, float dy) { 314 public void setElements(float m11, float m12, float m21, float m22, float dx, float dy) {
302 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); 315 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED);
303 Cairo.cairo_matrix_init(cast(cairo_matrix_t*)handle.ptr, m11, m12, m21, m22, dx, dy); 316 Cairo.cairo_matrix_init(cast(cairo_matrix_t*)handle.ptr, m11, m12, m21, m22, dx, dy);
304 } 317 }
305 318
319 /**
320 * Modifies the receiver so that it represents a transformation that is
321 * equivalent to its previous transformation sheared by (shearX, shearY).
322 *
323 * @param shearX the shear factor in the X direction
324 * @param shearY the shear factor in the Y direction
325 *
326 * @exception DWTException <ul>
327 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
328 * </ul>
329 *
330 * @since 3.4
331 */
306 public void shear(float shearX, float shearY) { 332 public void shear(float shearX, float shearY) {
307 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); 333 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED);
308 double[] matrix = [ 1.0, shearX, shearY, 1, 0, 0]; 334 double[] matrix = [ 1.0, shearX, shearY, 1, 0, 0];
309 Cairo.cairo_matrix_multiply(cast(cairo_matrix_t*)handle.ptr, cast(cairo_matrix_t*)matrix.ptr, cast(cairo_matrix_t*)handle.ptr); 335 Cairo.cairo_matrix_multiply(cast(cairo_matrix_t*)handle.ptr, cast(cairo_matrix_t*)matrix.ptr, cast(cairo_matrix_t*)handle.ptr);
310 } 336 }